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Solution: Implement Two Stacks Using One Array

Explore how to design and implement two stacks sharing one array by managing pointers at opposite ends. Understand push and pop operations that maintain fixed size without resizing, with O(1) time complexity, enabling you to write efficient JavaScript stack structures.

Statement

Design a data structure TwoStacks, that represents two stacks using a single list, where both stacks share the same list for storing elements.

The following operations must be supported:

  • push1(value): Takes an integer value and inserts it into the first stack.

  • push2(value): Takes an integer value ...